Finding the Fourth Proportional to 10,424.07, 14,385.38 and 5,708.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,424.07 : 14,385.38 = 5,708.79 : x
2. Step 2: Convert to fraction form
   10,424.07/14,385.38 = 5,708.79/x
3. Step 3: Cross multiply
   10,424.07x = 14,385.38 × 5,708.79
4. Step 4: Simplify right side
   10,424.07x = 82,123,113.49
5. Step 5: Solve for x
   x = 82,123,113.49/10,424.07
6. Step 6: Final answer
   x = 7,878.22